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Instruction PST4M 9M4

Product catalog summary

Technical Specifications:
The Picostat models 9B4, 9K4, and 9M4 have varying operating and media temperature ranges. Standard operating temperatures range from -25°C to +125°C, with specific sensors extending the range to -40°C. Electrical connections and measuring ranges are specified, with resistive and inductive load ratings provided for different voltage levels.

Electrical Ratings:
The devices feature silver and gold-plated contacts suitable for various AC and DC voltages. The maximum ratings are 250 V AC at 6(1) A and 24 V DC at 3(2) A. Gold-plated contacts are suitable for intrinsically safe control circuits.

Pressure Range and Sensors:
The document details pressure ranges for different sensor types (Bellows, Piston, and Membrane) with corresponding microswitch models. Pressure ranges are provided in both bar and psi units.

Switching Differential:
The switching differential is a fixed value, not adjustable, and varies depending on the pressure range and sensor type.

Dimensions and Installation:
Dimensions for the devices are provided, along with instructions for switching point adjustment. Specific torque values for pressure connections and fastening screws are outlined to ensure proper installation.

Attention:
The document highlights the importance of considering hysteresis depending on the preset value and provides specific torque requirements for various components.

Catalog excerpts

Operating temperature: Media temperature: Standard: with sensor 789/790/791: Standard: with sensor 789/790/791: Type label description S/N : XXXXXX-001 16/11 Type : XXX.XXXX IP65 2 Range : X...XX bar (~kg/cm ) X...XX MPa –25T125 p-max : XX bar / XX MPa 250 V AC 6(1)A 24V DC 3(2)A Serial number Type code Measuring range Max. overpressure Switching rating Ingress Protection Operating temperature Range Piston sensor 9K4 Range Membrane sensor 9M4 Gold plated contacts, suitable for max. 30 V 0.1 (0.1) A intrinsically safe control circuits min. 5 V 5 mA Resistive Load (Inductive Load) Electrical connections We reserve the right to make alternations as technical

Open the catalog to page 1

Pressure connection 1) Torque: Druckanschluss Raccord de pression Pressure connection Switching point adjustment H: Hysteresis depending on the preset value. 3) Fastening screw: M5 Property class: 8.8 Mounting torque: 4.5 ... 6 Nm 4) Torque connector center screw:

Open the catalog to page 2

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